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[Ron Haraseth]

Hello,

Great to find this focused resorce.

I have a long history of "radio" going back over 50 years.  I have never really been a colletor, bu along the way I aquired an Allwave 15 and a McMurdo Silver MP III from a friend of the family (along with a more modern :) SX-62).  My father in law (rip) remembered these radios from the original owner's house and the original owner's daughter offered them to me in the mid '70s.  We've had them on display and functional over the years, but I have not plugged them in for many years for obvious reasons. 

 

 

[Kent King]

Ron -

Welcome to the group. As part of our ongoing research on Scott sets, I have been collecting serial numbers for many years. Could you post the serial number of your AW15 here? From the number, I may be able to narrow down a production date for it. Some sets have papers still with them, and that has given us dates/serial numbers to enhance our knowledge. Any info you are willing to provide is greatly appreciated.

Kent

[Ron Haraseth]

 

 

 

Kent here is a picture of the serial number.  The radio was delivered and used originally in Great Falls, MT.  I should have captured the name of the original owner long ago, but I'm afraid the connections no longer exist.

[Kent King]

Ron -

Based on the style of the serial number tag and the number, this should be an Allwave 12 set. The tuner should have 9 tubes on it, and 3 on the amplifier. Can you check that for me? Thanks!

We have lost many opportunities to know more about the sets we all cherish, don't fell bad about that. The important thing is to save them from further loss.

Kent

[Ron Haraseth]

Kent,  Yes there are 9 tubes on the reciever chassis and three on the pwr supply final amp chassis.  It has dual speakers.

 

Ron

[Kent King]

OK...that fits...it is an Allwave 12 Deluxe. If you need anything for this set (schematic, owner's manual), I have PDF files for all these items for the set. I'll email them to you if you want them. Thanks!

Kent

[Ron Haraseth]

I have a schematic.  One thing this has which I never really could put to good use is an antenna preselector/tuner(?) mounted on the side consisting of a variable capacitor/coil combo.

 

Thanks,  Ron

[Ron Haraseth]

Kent. 

One thing I've failed to fully pin down is the exact build year of this series.  Do you have that info for this model/serial number?

[Kent King]

Ron -

The Allwave Deluxe was built in 1932 and 1933. From the serial number you have, I'd bet yours was built in the latter half of 1932. Hope that helps!

Kent

[Ron Haraseth]

Kent,

 

Thanks.

 

Ron

[David C. Poland]

I agree with the late 1932 or very early 1933 date for your 12 tube Scott  ....  considering it has a small serial number tag and the twin Rola speakers ( an 8 inch and 10 inch) with Scott decals. It should also have a blue glass Wunderlich tube as 2nd detector (far left side, 3rd tube back). The evolution of the 12 tube chrome sets is something like this.

The 1931 the 12 tube 2-Dial Scott  with the plug in coils for short wave was the first of the chrome Scotts. However,  the tube shields and large coil covers were aluminum (which can be polished up almost as bright as chrome). It uses 24A's and 27s in the receiver tube line up, and single 11 inch  brown, flange mount  Rola speaker with Scott decals. The receiver cable had an 8 pin Jones plug and the speaker a 5 pin plug. No AVC. The amp an 80 and pair of 45's.

 

May 1932 the 12 tube single dial Deluxe was announced featuring the new coil changing wheel for short wave,  the new 56 triodes instead of 27's, a small serial number tag ... and  tube shields & coil covers were now also chrome plated.  But this Deluxe carried over the from the 2-Dial sets the 24A's, the 8 pin Jones plug on the receiver cable,  single brown Rola made 10 inch speaker with the 5 pin speaker plug.  The big voltage divider resistor is still in the amp. No AVC or tuning meter yet. I have an example of this early version Deluxe receiver and amp.    

Soon, later in 1932, the single 11 inch Rola speaker gave way to the twin (8 and 10 inch) brown Rola "laboratory matched" speakers. The 12 page 1932 blue brochure pictures the twin speakers, and the amp photo now shows a 6 pin speaker socket and 6 pin Jones Plug socket, so, the voltage divider is now in the receiver.  No AVC nor tuning meter yet. Still uses 24A's, RF amp tube is a 51 and small serial number tag..

December 1932 the next version  Deluxe with AVC (automatic volume control) was introduced, using the cobalt blue glass Arcturus Wunderlich 2nd detector. My late 1932 console brochure on the last page  touts AVC and mentions the twin speakers and visual tuning (the meter that projects on the dial strip). The 1933 Orange cover Performance brochure also touts AVC and the visual tuning indicator. The undated 20 page green cover "Proof" brochure  touts AVC, the visual tuning indicator,  58's instead of 24A's and a 57 1st detector. It appears the AVC model was shipped with a full set of blue Arcturus tubes.    I restored a Deluxe with AVC with Wunderlich tube, twin speakers with 6 pin plug, tuning meter, a 6 pin Jones plug,  56's, a 57 & the 58's in the receiver.  and the small serial number tag --- a really good performer.

Early 1933, the 12 inch pedestal auditorium speaker (a Jensen #3509)  became standard for the 12 tube Deluxe with AVC. The March 1933 Radio News article (Gordon Taylor) comments the new pedestal speaker  was supplied but that the twin speakers were still available. The Rola twin speakers and the #3509 Jensen pedestal speaker both have a 6 pin plug and are interchangeable on the 3 tube amps that have the 6 pin speaker socket and 45 output tubes   (But not the #3573  Scott pedestal (by Jensen) speaker for the 3 tube the amp using 2A3's supplied with the Scott Fifteen.)  The large size serial number tags first appeared on early 1933 Deluxe sets and continued in use on subsequent Scott models through the 1930's. 

Scott continued to use the Wunderlich tube for the rest of the Deluxe AVC production  and continued to use it for the first few months of the Scott Fifteen introduced Feb 1934. Subsequently, when the low production Wunderlich tube because unavailable, some 12 and 15 tube Scotts were rewired to use the 55 tube. There is a factory approved modification for this change.  If someone needs a 2.5 volt Wunderlich for a Scott restoration maybe I can help.

-Dave Poland

[Ron Haraseth]

David C. Poland said:

I agree with the late 1932 or very early 1933 date for your 12 tube Scott  ....  needs a 2.5 volt Wunderlich for a Scott restoration maybe I can help.

-Dave Poland

Dave,

Great background info.  I really appreciate your comment!

 

Ron